Chinese artist Ai Weiwei poses in front of his sculpture "Forever" at the base of the the "Gherkin" tower in the City of London on September 16, 2015, during a photocall to celebrate the completion of his installation, as part of the Sculpture in the City outdoor art exhibition. The nearly 10 metres tall and 16 metres wide structure consisting of 1,254 bicycle frames will be on display through May 2016. AFP PHOTO / LEON NEAL = RESTRICTED TO EDITORIAL USE, MANDATORY MENTION OF THE ARTIST UPON PUBLICATION, TO ILLUSTRATE THE EVENT AS SPECIFIED IN THE CAPTION = (Photo credit should read LEON NEAL/AFP/Getty Images)
